Neocrassocoris, a new apterous genus of Carventinae from China (Heteroptera: Aradidae)
Author
Bai, Xiaoshuan
Author
Heiss, Ernst
Author
Cai, Wanzhi
text
Zootaxa
2019
2019-05-28
4612
1
95
102
journal article
26660
10.11646/zootaxa.4612.1.6
51c08ce7-4068-4aa3-ad1b-98475d45a168
1175-5326
3233646
2A949655-47B9-426D-B9A6-95D012F72E23
Neocrassocoris longzhouensis
sp. nov.
(
Figs. 18–28
)
Type material.
Holotype
(
♂
):
China
,
Guangxi
,
Longzhou
,
Nonggang
,
14.viii.2013
, leg.
X.S. Bai
(
IMNU
); pro- vided with type label.
Diagnosis.
General aspect similar to
Neocrassocoris pingbianensis
sp. nov.
, but distinguished from the latter by its narrow pronotum 2.74 times as wide as long (3.02), anterolateral lobes widely rounded (anterolateral angles produced and forming blunt lobes in
pingbianensis
); shorter antennae 2.38 times as long as width of head (2.47); male posterolateral angles of deltg VII rounded (posterolateral angles of deltg VII angular in
pingbianensis
).
Description of male.
Head.
Longer than wide across eyes (1.06: 0.86); genae slightly notched anteriorly, reaching basal one-third of first antennal segment; clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 2.38 times as long as width of head across eyes, length of antennal segments I to IV= 0.66: 0.33: 0.73: 0.33; eyes small, convex; postocular tubercles small and not reaching outer margin of eyes, postocular lobes strongly constricted posteriorly; vertex with irregular carinae flanked by a pair of large, ovate infraocular callosities.
Pronotum.
2.74 times as wide as long (1.45: 0.53), attenuated anteriorly; collar thick, as wide as diameter of first antennal segment (0.15: 0.15); anterolateral angles slightly produced and widely rounded; disc with a longitudinal median furrow, flanked by a pair of subtriangular plates which meet at anterior margin; laterally of plates disc with four (2+2) tuberculate callosities; laterad of callosities with a pair of subrectangular plates with strongly elevated granulate carinae; posterior margin of pronotum slightly convex separated from mesonotum by a deep furrow.
Mesonotum.
Wider than pronotum (1.91: 1.45); separated from metanotum by a pair of very deep furrows; elongate, subpentagonal median ridge across meso- and metanota flanked by deep furrows and a pair of longitudinal smooth carinae; laterally of carinae with a pair of subrectangular plates with longitudinal, irregular callosities and granulate carinae along lateral margin.
Metanotum and mtg I+II
. Wider than mesonotum (2.1: 1.91); median ridge flanked by a pair of deep oval excavations, laterally of with a pair of oval plates with large oval and longitudinal callosities, lateral margins granulate, like those of mesonotum; disc of mtg I with a pair of deep oval depressions sloping anterolaterally; disc of mtg II with a pair of deep furrows, sloping posteriorly and sideways, posterior margin carinate.
Abdomen
Tergal plate consisting of mtg III–VI, subquadrangular, posterior margin truncate, lateral margins slightly rounded; with a slightly raised median ridge on mtg III, a pentagonal elevation on mtg IV then tapering posteriorly; laterad of median ridge with the usual pattern of large and small callous spots; deltg II+III completely fused, IV–VII separated by fine sulci; posterolateral angles formed by the dorsally reflexed vltg II–VII progressively protruding, posterolateral angles of deltg VII rounded; ptg VIII clavate, reaching to posterior margin of deltg VII; pygophore cordate (
Figs.24–25
); parameres slender (
Figs.26–28
).
Venter.
Sterna III to VI raised along posterior margin, depressed along anterior border and with triangular, smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions, these bearing a pair of round callous spots of usual pattern; spiracles II to VII lateral and visible from above, VIII terminal; lateral rim of male vltg VII with a shiny sublateral callus anterior to spiracle VII.
Legs.
Slender, preapical comb on fore tibia present, claws with fine pulvilli.
Measurements
[
in mm,
♂
(n=1)
]
. Body length 5.35; maximal width of abdomen 2.55. Head length 1.06, width 0.86. Pronotum length 0.53, width 1.45. Mesonotum width 1.91. Metanotum width 2.1. Length of antennal segments I–IV =0.66, 0.33, 0.73, 0.33.
FIGURES 18–19.
Neocrassocoris longzhouensis
sp. nov.
18–19, holotype male; 18, dorsal view; 19, ventral view. Scale bar = 1 mm.
FIGURES 20–28.
Neocrassocoris longzhouensis
sp. nov.
20–23, different body parts; 24–25, pygophore in dorsal and lateral view; 26–28, right paramere; 20, 22, dorsal view; 21, 23, ventral view. Arrows indicate the position of the callus. Scale bar = 0.5 mm for 20–23; 0.1 mm for 24–28.
Etymology.
The specific name refers to the
type
locality.
Distribution.
China
(
Guangxi
).